Jeram, Ethereal Guardian

Flying, vigilance, shadow
If a spell or nonland ability and opponent
controls causes that player to search their library,
that player searches the top ten cards instead and
you draw a card.
You may sacrifice Jeram. If you do, you may exile target creature you control until end of next turn.
{1}{w}{w}{w} Put Jeram onto the battlefield
from the command zone.